Just as the mediæval Church was by no means an exclusively religious institution, so the Protestant revolt was by no means simply a religious change, but a social and political one as well. The conflicts which the attempt to overthrow this institution, or rather social order, brought about were necessarily terrific. They lasted for more than two centuries and left no interest, public or private, social or individual, earthly or heavenly, unaffected. Nation rose against nation, kingdom against kingdom; households were divided among themselves; wars and commotion, wrath and desolation, treachery and cruelty filled the states of western Europe. Our present object is to learn how this successful revolt came about, what was its real nature, and why the results were what they were. In order to do this, it is necessary to turn to the Germany in which Luther lived and see how the nation had been prepared to sympathize with his attack on the Church. [Sidenote: Germany of to-day.] 134. To us to-day, Germany means the German Empire, one of the three or four best organized and most powerful of the European states. It is a compact federation, somewhat like that of the United States, made up of twenty-two monarchies and three little city republics. Each member of the union manages its local affairs, but leaves all questions of national importance to be settled by the central government at Berlin. This federation is, however, of very recent date, being scarcely more than thirty years old. [Sidenote: The 'Germanies' of the sixteenth century.] In the time of Charles V there was no such Germany as this, but only what the French called "the Germanies"; i.e., two or three hundred states, which differed greatly from one another in size and character. One had a duke, another a count at its head, while some were ruled over by archbishops, bishops, or abbots. There were many cities, like Nuremberg, Augsburg, Frankfort, and Cologne, which were just as independent as the great duchies of Bavaria, Würtemberg, and Saxony. Lastly there were the knights, whose possessions might consist of no more than a single strong castle with a wretched village lying at its foot. Their trifling territories must, however, be called states; for some of the knights were at that time as sovereign and independent as the elector of Brandenburg, who was one day to become the king of Prussia, and long after, the emperor of Germany. [Illustration: GERMANY IN THE SIXTEENTH CENTURY] [Sidenote: The seven electors and the other greater German princes.]